Silas tuttle



Patented 1an. 3|, |899.

No. 6|8,59o.

s. lTuTTLla. AIB REGISTER 0R VENTILATUB.

(Application led Apr. 21, 1898.)

(No Model.)

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UNITED STATES PATENT @Erica sILAs TUTTLE, or NEW YORK, N. Y.

AIR REGISTER oR VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 618,590, dated January 31, 1899.

Application filed April 21, 1898.

To all whom t may concern,.-

Be it known that I, SILAs TUTTLE, of New York, (Brooklyn,) Kings county, New York, have invented a new and useful Improvement in Air Registers or Ventilators, of which the following is a speciiication.

My invention relates to a register in which the fans are pivoted and are turned upon their pivots to open or close the register-aperture.

My invention consists in the construction and arrangement of the fan-operating device, as more particularlypointed out in the claim.

In the accompanying drawings, Figure 1 is a front view of the register with a portion of the grating removed, so as to exhibit the operating parts. Figs. 2 and 8 are cross-sections on the line x x of Fig. l, the view being taken in the direction of the arrow a. Fig. 4 shows the sliding bar separately. Fig. 5 is a plan view of the bar which receives the stud-.pins of the fan and which carries the studs which engage With the bar shown in Fig. 4. Fig. 6 is a side view of the bar shown in Fig. 5;

Similar numbers of reference indicate like parts.

1 is the register frame or box. 2 is the grating, which is secured thereto in any suitable manner, as by bolts, or, as represented, by being cast integrally with said frame. The fans or slats 3 are here shown as four in number; but of course this number may be varied at will. At the transverse edge of each fan there is a pivot-pin 4, which may be made integral with the fan or in any suitable manner secured thereto. These pivot-pins 4 are placed to one side of a median line longitudinally the fan, or, in other words, the longitudinal edges of the fan are not equidistant from the pivot-pin. By reason of this construction I am enabled to make the frame of a depth less than that which would be necessary if the fans were pivoted centrally or at the extremities of a longitudinal line equidistant to and from the fan edges, because in that case the width of the fan between pivot and registerface would obviously be greater than is the case when the fan is eccentrically pivoted, as shown, and therefore the depth of the frame would have to be correspondingly augmented. This eccentric pivoting of the fans therefore reduces the amount of metal in the register- Serial No. 678,345. (No model.)

frame and renders it lighter and cheaper with- I out in anywiseimpairing the utility of the register as a whole. I do not claim this eccentric pivoting of the fan in my present application, because I have already claimed the same in another application, Serial No. 676,064, filed April 1, 1898.

As shown in Fig. 3, that part of the fan which is of the narrowest width comes between the pivot-pin and the grating when the fans are in open position. The pivot-pins of the fan are received in bearings in bars, one of which is shown at 5. These bars are located at opposite sides of the frame and lie closely against the Wall thereof, to which they are detachably secured by means of a screw,(sh0wn at 6 in dotted lines.) The fan-pivots are inserted in bearings in the bar 5 before the bars are placed in the frame, and afterward the bars are fastened in place by the screws 6, as stated. It will be obvious that on taking out the screw 6 the bar 5, together with the fan and all the operating devices for the fan, as

hereinafter described, can be removed simultaneously from the frame.

Each fan is provided with astud-pin 7 ,which is preferably located between the pivot-pin 4 and the longitudinal edge of the fan nearest thereto. The pins 7 on the several fans are all received in openings in a bar 8, and this bar rests upon a sliding bar 9, which in turn rests upon the fixed bar 5, as shown'in Fig. 1. On the bar 8 are projecting pins lO, which are received in curved slots 11 in the bar 9. Also upon the bar 9 there is a projection 12, which extends through an opening in the register, grating. By means of this projection the bar 9, as will hereinafter be explained, is moved in a longitudinal directionthat is to say, from right to left of the drawings. A leaf-spring 13 bears against a shoulder on-the projection 12 and also against the inner side of the grating 2 and presses the straight edge of the bar 9 against the pivot-pins 4 of the fans, thus holding the parts together.

The operation of the device is as follows: The parts being in the position shown in Fig. 2, the projection 12 is moved in the direction of the arrow b to carry the sliding bar 9 in the same direction, as indicated by arrow o. The

IOO

tion shown in Fig. 3. In so doing the fans are turned on their pivots in the direction of the arrow d,Fig. 2,Whi1e the stud-pins 7 are caused to move in the circular direction of the arrow e, Figs. 2 and 3, so that by the time the bar 9 has been moved to its full extent to the left, as shown in Fig.3, the fans 5 have been placed in their open position. In order to close the fans, the projection l2 is moved to the right, or in the direction of the arrowfin Fig. 3, in which case the slots 1l, operating, as before, as a cam upon the pins l0 on bar 8, turn the fans in the reverse direction, as before, and so shut them.

I claim- In an air register or ventilator tWo or more When said bar is moved acting upon said connecting-rod, to turn said fans simultaneously on their pivots, and also by its engagement with said stud to lock said connecting-bar, and hence said fans, in closed position, substantially as described.

SILAS TUTTLE.

Witnesses:

I-I. R. MOLLER, I. A. VAN WART. 

